Applicationexample ![]() Arabidopsisthalianawild-type(Col-0)andhy1-100mutantseedlingsweregrownon½MSagarplatessupplementedwith1%agar,withoutsucrose,for2ddarkand3dinWLc(100µmolm-2s-1)at22°C.100mgofcotyledontissuewascollectedfrom5doldseedlingsandextractedwith500µL2xLaemmlibufferwithoutbromophenolblue(0.125MTris-HCl,pH6.8;4%SDS;20%glyceroland5%2-mercaptoethanol),denaturedat99°Cfor5minusingthermomixer(Eppendorf),andcentrifugedfor5minat13,000rpmat4°C.Approximately100µgproteinfrom2mgofleafmaterialwasloadedperlane(ina10µLvolume)withappropriatereductionsfor0.5xand0.25x,respectively.Proteinswereseparatedona4%stackingand12%resolvingSDS-PAGEgelusingstandardTris/Glycinerunningbuffer(25mMTris,192mMglycine,0.1%SDS)andblottedfor1hat100Vtoa0.22µmnitrocellulosemembranefromLicor.Awettransferwasused,withtransferbuffercontaining:20%methanol,25mMTris,192mMglycine.BlotswerestainedwithPonceauSsolution(0.1%PonceauSin5%aceticacid)andwashedbrieflywithTBS,thenblockedwith5%(w/v)milkinTBSfor1hatroomtemperature(RT)withagitation.Blotswereincubatedintheprimaryantibodyatadilutionof1:2000overnightat4°Cwithagitationin5%milkinTBS-T.Theantibodysolutionwasremoved,theblotrinsedbriefly,andwashedsixtimesfor5mininTBS-TatRTwithagitation.Theblotwasincubatedinasecondaryantibodyprotectedfromlight(donkeyanti-rabbitIgGIRDye800CWfromLicor,925-32213)dilutedto1:20000in5%(w/v)milkinTBS-Tfor45minatRTwithagitation.Theblotwaswashedsixtimesfor5mininTBS-TatRTwithagitationandthreetimesfor2minwithTBStoremoveresidualTween.Forvisualization,theblotwasexcitedwiththe700nmand800nmchannels,withscanningintensity3and5,respectively,usingtheOdysseyinfra-redblotscannerfromLicor. CourtesyofSylwiaKacprzakandDr.MatthewJ.Terry,UniversityofSouthampton,UnitedKingdom 新闻动态
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